Invention Grant
US07949325B2 RF transmitter and integrated circuit with programmable filter module and methods for use therewith 有权
RF发射器和具有可编程滤波器模块的集成电路及其使用的方法

RF transmitter and integrated circuit with programmable filter module and methods for use therewith
Abstract:
A radio frequency (RF) transmitter includes a transmitter processing module that generates a processed signal based on outbound data, wherein the processed signal includes one of: a baseband signal and a low intermediate frequency signal. An up-conversion module up-converts the processed signal to generate an up-converted signal. A programmable filter module generates a plurality of delayed signals from the up-converted signal and that generates a filtered up-converted signal by combining the up-converted signal and the plurality of delayed signals, wherein a delayed signal of the plurality of delayed signals is scaled based on one of a plurality of coefficients, wherein the plurality of coefficients are selected based on a control signal. A radio transmitter front-end generates a transmit signal based on the filtered up-converted signal. A processing module generates the control signal to attenuate at least RF spur of the up-converted signal.
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